Rockwell Automation Liqui-Flo DBT Reach Drive - Manual (Page 192)

4-12 DBT Reach Drive User Manual
NVS I/O
Checksum 109 EEprom checksum error. 1. Cycle power and repeat
function.
2. Replace Main Control
Board.
NVS I/O
Failure 110 EEprom I/O error. 1. Cycle power and repeat
function.
2. Replace Main Control
Board.
Output Phase
Loss 21 Current in one or more phases
has been lost or remains
below a preset level. Check the drive and motor
wiring. Check for
phase-to-phase continuity at
the motor terminals. Check for
disconnected motor leads.
OverSpeed
Limit 25
➀
Functions such as slip
compensation or bus
regulation have attempted to
add an output frequency
adjustment greater than that
programmed in Overspeed
Limit (83). Remove excessive load or
overhauling conditions or
increase Overspeed Limit (83).
OverVoltage 5
➀
DC bus voltage exceeded
maximum value. Monitor the AC line for high line
voltage or transient conditions.
Bus overvoltage can also be
caused by motor regeneration.
Extend the decel time or install
dynamic brake option.
Parameter
Chksum 100
➁
The checksum read from the
board does not match the
checksum calculated. 1. Restore defaults.
2. Reload user set if used.
Params
Defaulted 48 The drive was commanded to
write default values to
EEPROM. 1. Clear the fault or cycle
power to the drive.
2. Program the drive
parameters as needed.
Phase U to
Grnd 38 A phase-to-ground fault has
been detected between the
drive and motor in this phase. 1. Check the wiring between
the drive and motor.
2. Check motor for grounded
phase.
3. Replace drive.
Phase V to
Grnd 39
Phase W to
Grnd 40
Phase UV
Short 41 Excessive current has been
detected between these two
output terminals. 1. Check the motor and drive
output terminal wiring for a
shorted condition.
2. Replace drive.
Phase VW
Short 42
Phase UW
Short 43
Table 4.5 – Fault Descriptions and Corrective Actions (Continued)
Fault
No. Ty
p
e
Description Action